Sienna Resources Inc. announce that a second phase of surface exploration work has begun on their Marathon North Platinum-Palladium Property in Northern Ontario directly bordering Generation Mining Ltd.'s Marathon palladium project. This Phase 2 program, which will include geological mapping, prospecting, and sampling, follows up on the results from the first phase of surface exploration completed in late 2020 which identified a number of prospective locations with promising geology and minor sulphide mineralization.